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| Criterion |  UX Research Usability Testing |  Decision Making Assumption Surfacing |  Product Discovery Problem Interview |
|---|---|---|---|
Purposedifferent | When a product is built but people get stuck on tasks, usability testing shows the friction at concrete points. Observed use instead of self-report makes visible where orientation, understanding, or interaction breaks down. | Plans often contain assumptions that were never openly stated and remain dangerous precisely because of that. Assumption Surfacing makes these silent premises visible and prioritizes which of them carry the initiative or could sink it. | When the picture of the problem still needs to become solid, it asks about real situations and consequences. It separates genuine suffering from mere interest in a solution. |
Complexitydifferent | Medium | Low | Medium |
Timedifferent | 1-2 h je Session | 45-90 min | 30-60 min je Interview |
Participantsdifferent | Based on research question | 2-8 | 5-12 Interviews |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Usability Issues, Severity List, Recommendations | Assumption List, Critical Assumptions, Learning Plan | Problem Evidence, Risk Notes, Customer Segments |
Tagsno overlap | ValidationUXPrototype | AssumptionsRiskDecisionDiscovery | DiscoveryInterviewsValidation |
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